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Message-ID: <202408181614.AAr0qM24-lkp@intel.com>
Date: Sun, 18 Aug 2024 16:33:06 +0800
From: kernel test robot <lkp@...el.com>
To: Jocelyn Falempe <jfalempe@...hat.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
John Ogness <john.ogness@...utronix.de>,
Javier Martinez Canillas <javierm@...hat.com>,
"Guilherme G . Piccoli" <gpiccoli@...lia.com>,
bluescreen_avenger@...izon.net, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Jocelyn Falempe <jfalempe@...hat.com>
Subject: Re: [PATCH v2 3/5] drm/log: Introduce a new boot logger to draw the
kmsg on the screen
Hi Jocelyn,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 8befe8fa5a4e4b30787b17e078d9d7b5cb92ea19]
url: https://github.com/intel-lab-lkp/linux/commits/Jocelyn-Falempe/drm-panic-Squash-of-pending-series/20240816-205859
base: 8befe8fa5a4e4b30787b17e078d9d7b5cb92ea19
patch link: https://lore.kernel.org/r/20240816125612.1003295-4-jfalempe%40redhat.com
patch subject: [PATCH v2 3/5] drm/log: Introduce a new boot logger to draw the kmsg on the screen
config: arm-randconfig-r121-20240818 (https://download.01.org/0day-ci/archive/20240818/202408181614.AAr0qM24-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20240818/202408181614.AAr0qM24-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408181614.AAr0qM24-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/drm_log.c:66:17: sparse: sparse: symbol 'drm_log_buf' was not declared. Should it be static?
>> drivers/gpu/drm/drm_log.c:384:1: sparse: sparse: symbol 'drm_log_work' was not declared. Should it be static?
drivers/gpu/drm/drm_log.c: note: in included file (through include/linux/rculist.h, include/linux/console.h):
include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
vim +/drm_log_buf +66 drivers/gpu/drm/drm_log.c
59
60 /*
61 * A circular buffer, with the last kmsg logs to print.
62 * 8K is more than what can be drawn on most monitors.
63 */
64 #define CIRC_BUF_SIZE (1 << 13)
65 #define CIRC_BUF_MASK (CIRC_BUF_SIZE - 1)
> 66 struct circ_buf drm_log_buf;
67 static DEFINE_SPINLOCK(drm_log_writer_lock);
68 static DEFINE_SPINLOCK(drm_log_reader_lock);
69
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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